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Gemini 3.1 Pro Preview Custom Tools

Google · gemini-3-1-pro-preview-customtools

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Advanced Gemini model for complex reasoning, coding, and multimodal analysis

Specification

google listing

Context
1M
Max output
66K
Released
2026-02-19
Knowledge cutoff
2025-01
Retires
Open weights
no
Input
text, image, video, audio, pdf
Output
text

Price

US dollars per million tokens · google list price

Input
$2.00
Output
$12.00
Cache read
$0.20
Cache write
$0.375

Batch and priority prices

US dollars per million tokens · per listing

PriceListing$/M
Batch inputvertex_ai-language-models$1.00
Batch outputvertex_ai-language-models$6.00
Priority inputvertex_ai$3.60
Priority outputvertex_ai$21.60

Batch input is 50% below the interactive input price at the same listing.

Long-context price tiers

the rate above each context threshold

AbovePrice$/M
200KCache read$0.40
200KCache write$0.25
200KInput$4.00
200KOutput$18.00

Rate limits

as listed

Requests per minute
2,000
Tokens per minute
800,000

Quality

1 benchmark · 1 source

Composite
90th
percentile of 334 scored models
Rank
33 / 334
±0.10 sd
Evidence
1 × 1
too little evidence to place with confidence
Effort range
one configuration only
coding83rd1/3 bench

Every score

one row per source and configuration — nothing averaged away

BenchmarkScoreConfigurationSourceRun
SWE-Bench verified75.6 ±2.0defaultEpoch AI2026-02-24

The leading figure for a benchmark is the median across its configurations, so one heroic high-effort run cannot set the number.

Available from 12 hosts

HostIn $/MOut $/MCache rdCache wrContextOutputRetires
googlevendor$2.00$12.00$0.201M66K
aihubmix$2.00$12.00$0.201M66K
edenai$2.00$12.00$0.20$0.3751M66K
gemini$2.00$12.00$0.201M66K
google-vertex$2.00$12.00$0.201M66K
kilo$2.00$12.00$0.20$0.3751M66K
merge-gateway$2.00$12.00$0.201M66K
nano-gpt$2.00$12.00$0.20$0.3751M66K
openrouter$2.00$12.00$0.20$0.3751M66K
orcarouter$2.00$12.00$0.201M66K
vertex_ai$2.00$12.00$0.201M66K
vertex_ai-language-models$2.00$12.00$0.201M66K

Price history

append-only observations · a listing writes a row only when its price moves

DateHostField$/M
2026-09-02openrouterCache read$0.20
2026-09-06openrouterCache read$0.20
2026-09-02openrouterCache write$0.375
2026-09-06openrouterCache write$0.375
2026-09-02openrouterInput$2.00
2026-09-06openrouterInput$2.00
2026-09-02openrouterOutput$12.00
2026-09-06openrouterOutput$12.00

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